| 摘要 |
PROBLEM TO BE SOLVED: To reduce the energy consumption when a transfer function needed for vibration reduction control is identified without exerting any adverse influence on the identification precision of the transfer function by properly setting the amplitude of an identification signal and then identifying the transfer function with high precision. SOLUTION: The amplitudes of identification signals are set individually corresponding to their frequencies and the relations between the frequency and amplitudes are set in conformity with the amplitude dependency of liquid charged in an active engine mount 1. Consequently, engine shakes generated on the side of an engine 30 are attenuated by the active type engine mount 1 to some extent and the vibration level on the side of a vehicle body 35 is reduced. For the purpose, the amplitudes of the identification signals are set individually on the basis of their frequencies and correcting operation is carried out to reduce the power consumption at the time of an identifying process without exerting any adverse influence on the precision of an identified transfer function. |
